Joshua Aaron Cohen (born September 6, 1980) is an American novelist and story writer, best known for his works Witz (2010), Book of Numbers (2015), and Moving Kings (2017).

[4] In 2017, Granta Magazine named him to its decennial list of the Best Young American Writers.

"[7] Cohen's essays have appeared in Harper's, The New York Times, The New Republic, The New York Times Book Review, Bookforum, The Jewish Daily Forward, Nextbook, Tablet Magazine, Triple Canopy (online magazine), Denver Quarterly, The Believer, The New York Observer, The London Review of Books, N+1 online, Guernica Magazine, and elsewhere.

According to Snowden, Cohen "help[ed] to transform my rambling reminiscences and capsule manifestos into a book.” The New York Times wrote: "It’s like a recursive loop of life imitating art imitating life; in Cohen’s Book of Numbers, published in 2015, a novelist named Joshua Cohen is hired to ghostwrite the autobiography of a mysterious tech billionaire ... whose search-engine company happens to be sharing information with government agencies.

"[9] The New Republic wrote: "Despite Macmillan’s black op to keep the book under wraps, over the past year, New York literary circles have buzzed with the news that novelist (and a contributor to The New Republic) Joshua Cohen had signed on as the famed whistle-blower’s literary interlocutor, traveling to Russia over the course of eight months to help Snowden, now 36, organize and improve his narrative.